Provide a way or explanation on mapping ewma-timeless to time-based averages

[eric]

I've wanted to craft a "1 minute", "5 minute", "15 minute" moving average (like a unix load average), but don't know the right r to pass to ewma-timeless to get it.

Either documenting a rule of thumb or providing a mechanism to recreate that would be helpful.

[AlexBaranosky]

@eric What about:

(defn moving-average [num-seconds & children]
  (moving-event-window num-seconds (apply smap folds/mean children)))